Frames



(No Model.) '2 Shets-Shet 1. I

J. W. GAUNT.

AUTOMATIC STOP MECHANISM FOR DRAWING FRAMES, 61,0. N0. 472,043. Patented Apr. 5, 1892.

WITNESSES: INVENTOP mm W v ATTORNEYS (No Model.) 2 Sheets.8heet 2.

J. W. GAUNT. AUTOMATIC STOP MECHANISM FOR DRAWING FRAMES, &c. No. 472,043. Patented Apr. 5, 1892.

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NITE STATES PATENT OFFICE.

JOHN WILLIAM GAUNT, or BRAMLEY, ENGLAND.

AUTOMATIC STOP MECHANISM FOR DRAWING-FRAMES, 80C.

SPECIFICATION forming part of Letters Patent No. 472,043, dated April 5, 1892. Application filed May 16, 1891. Serial No. 393,055. (No model.) Patented in England February 8, 189 ITO-1,935-

To all whom it may concern.-

Be it known that 1, JOHN WILLIAM GAUNT, a subject of the Queen of Great Britain and Ireland, residing at Bramley, in the county of 5 York, England,have invented certain new and useful Improvements in Au tomaticStop Mechanism for Drawing-Frames, &c., (for which I have obtained Letters Patent in England, No. 1,935, dated February 3, 1891,) of which the following is a specification.

This invention relates to certain improvements in automatic apparatus for stopping machines used in the preparation of fibers for spinning into yarn, and has for its object the r construction of the same in such a manner that Whenever a thread or cord of fiber is broken or the supply exhausted the machine will be stopped before the end of the broken or exhausted thread arrives at the deliveryrollers, and thus to obtain a more uniform thickness in the thread or yarn produced when two or more threads or cords are combined for reduction in thickness by the operation of the machine through which the fiber is passing, and consequently to reduce the amount of waste produced by the machine when the threads are conducted to the rollers in the ordinary manner.

In the accompanying drawings, Figure 1 represents an end view of certain portions of a slubbing or drawing frame to which my improvements are added. Fig. 2 is a front view of a portion of the frame, certain parts being broken away; Fig. 3, a detail section through 3 5 the stop-cylinder and detector-rail; Fig. 4:,de-

tails of the operating clutch-plates; Fig. 5, a back elevation of a portion of the frame, and Fig. 6 a detached detail plan of my improvement.

0 The machine partly illustrated by Figs. 1,

2, and 5 is constructed and driven in the ordinary manner, and my improvement is placed in any convenient position between the supply-bobbins A, mounted in the usual position,

and the ordinary carriers and rollers B, with suitable connections to the belt guide-bar.

To the additional longitudinal bar 0, extending the length of the machine is attached a number of bosses D, through which pass a series of detector-wires E, each sus pended by a cord of fiber F, passing through an eye or opening formed at the top of each detector. The tension of the respective cords of fiber keeps the detectors above and clear of a rotating cylinder G, having a number of radiating vanes G, secured to the circumference thereof, and which may be driven, preferably, at a slow rate of speed by gearing H, connected with some rotating shaft of the machine in the following manner.

The spur-wheel H is free on the cylindershaft, and to the said spur-wheel is secured a clutch-plate J, having two or more angular projections J on the face thereof. Another clutch-plate K is mounted on the said shaft 6 3 in such a manner that it will slide thereon, and is kept in contact with clutch-plate J by the spiral spring S, the cylinder G being driven by the spur-wheel H through the clutch-plates J and K.

So long as the detectors E are elevated by the tension of the cords of fiberFthe cylinder continues to revolve; but should a cord of fiber F be broken or the supply exhausted the detector-wire E will drop onto the circumferonce of the cylinder G, and on one of the radiating vanes G coming in contact with the detector the rotation of the cylinder G and clutchplate K is stopped but the spurwheel H and clutch-plate J continue to ro- 8o tate, and by an angular projection J on plate J pressing against an angular projection K on clutch-plate K the latter is caused to slide on the cylinder-shaft in the direction of the arrow.

A lever L is mounted on a fulcrum-pin at M. One arm of thelever presses against the back of clutch-plate K, and on the other arm is an adjustable block N, having an inclined plane on one side, for the purpose as hereinafter described.

Mounted in suitable bearings is shaft P, 011 which is secured a disk'Q, provided with a tongue R, projecting therefrom, which when the machine is in motion rests upon and is supported by the inclined plane on block N. 5 Projecting from the disk Q is an arm S',with aweight T secured to the end thereof, and on the shaft P is secured a lever U, engaging with the sliding belt fork-bar V.

When a detector-wire E is allowed to drop onto the circumference of the cylinder G, the clutch-plate K is forced back in the direction of the arrow in the manner as hereinbefore described. Then the lever L is operated on its fulcrum-pin and moved into a position somewhat as shown by dotted lines a distance suflicient to remove the inclined plane of block N clear of the tongue R, thus removing the support, and thereby allowing the Weight to descend and the leverUto operate the belt fork-bar V into the position shown by dotted lines, thus moving the belt from the fast to the loose pulley, by which the machine is stopped automatically whenever a detector is allowed to come in contact with the cylinder G.

\Vhat I claim is The combination of the lever L, adjustable block Non one arm of said lever, disk Q,belt 

